Complaints over time
Complaints about the 2021 BMW 740I peaked in 2025, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2021 BMW 740I
Sedan, gasoline, built in Germany. Owner complaints on file from Jul 8, 2025 to Jul 8, 2025.
Recall campaigns covering this model year2119k vehicles or units across those campaigns
Owner complaints1Below the median 2021 sedan
Severity index0.02021 sedans average 7.9
First 24 months0Complaints in its first two years
Components
100% of complaints about the 2021 BMW 740I name driver assistance
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
2 recall campaigns cover the 2021 BMW 740I
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 24V-576 | Aug 1, 2024 | In the event the starter motor fails, repeated attempts to start the vehicle can cause the starter motor to overheat from an electrical overload | Electrical system | 105,588 | Software update |
| 21V-096 | Feb 19, 2021 | When shifting into Reverse, a small portion of the rearview image may be obscured, or the screen may not illuminate | Back-over prevention | 13,858 | Software update |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2021 BMW 740I
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
1 complaint on file, page 1 of 1.
- Filed Jul 8, 2025Failure May 28, 2025Fresno, CAWarnings, Assist, Warning
I am filing this complaint regarding an ongoing safety issue with my 2021 BMW 740i involving the lane departure warning system, lane keep assist, and adaptive cruise control, all of which have stopped functioning properly. These features are critically tied to the windshield-mounted KAFAS camera, which I’ve now been told needs to be replaced. Initially, the BMW dealership attributed the issue to a software problem and charged me $500 for a software update. After the update, the driver assist systems remained non-functional. The dealership then diagnosed a failure with the front camera assembly and is now quoting me approximately $3,000 for replacement of the windshield and camera module. I have reviewed NHTSA Technical Service Bulletin SIB 66 08 23 (NHTSA ID: MC-10236236-9999), which outlines this exact issue, suggesting that BMW is aware of system limitations and hardware failures in this critical safety feature. However, this has not resulted in a recall or manufacturer-paid repair, despite the significant safety risk involved. I am requesting that NHTSA investigate this issue for the 2021 BMW 740i and similar BMW models equipped with the same KAFAS camera system. The sudden failure of key driver assistance systems—especially lane departure warning and adaptive cruise control—can lead to dangerous driving conditions, particularly on highways. I believe a recall or service campaign should be initiated requiring BMW to cover the cost of diagnosis and camera replacement due to the safety-critical nature of these systems. Please consider this complaint as a formal petition for further investigation and potential recall.
NHTSA complaint 11672121
Source: NHTSA ODI complaints file.
Investigations
NHTSA has not opened an investigation on this model year
Source: NHTSA ODI investigations file.
Service bulletins
157 manufacturer communications cover this model year
Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.
- B110426 Jul 17, 2026 · Service Bulletin/Repair Instructions
The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task, is inoperative or it may lock up at between a 15% to 30% completionrate. - B010324 May 6, 2026 · Warranty Program/Extension
The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date. - B010522 Mar 27, 2026 · Warranty Program/Extension
THE FRONT AND REAR AIR SUSPENSION STRUT ASSEMBLIES LIMITED WARRANTY FOR DEFECTS IN MATERIALS OR WORKMANSHIP HAS BEEN EXTENDED TO 8 YEARS /80,000 MILES AS DETERMINED FROM THE ORIGINAL IN-SERVICE DATE. - B660325 Mar 26, 2025 · Service Bulletin/Repair Instructions
A check control message is displayed, indicating that the parking assistance systems have limitedfunctionality due to errors detected within PDC sensors. The warning indicates parking assistance featureshave limited functionality while the errors continue t… - B120224 Jun 6, 2024 · Service Campaign
VOLUNTARY EMISSIONS RECALL 24E-A02: VALVETRONIC - B120224B Apr 18, 2024 · Service Bulletin/Repair Instructions
BMW AG has issued a Delivery Stop (effective April 12, 2024) on certain Model Year 2023 - 2025 BMW vehicles that were produced between July 21, 2021, and April 11, 2024. - B120224A Apr 15, 2024 · Service Bulletin/Repair Instructions
BMW AG has issued a Delivery Stop (effective April 12, 2024) on certain Model Year 2023 - 2025 BMW vehicles that were produced between July 21, 2021, and April 11, 2024. - B120224 Apr 22, 2024 · Service Bulletin/Repair Instructions
BMW AG has issued a Delivery Stop (effective April 12, 2024) on certain Model Year 2023 - 2025 BMW vehicles that were produced between July 21, 2021, and April 11, 2024. - B630418 Mar 14, 2024 · Service Bulletin/Repair Instructions
One or more of the LED daytime running lights are dim or discolored. - B510819 Jan 16, 2024 · Service Bulletin/Repair Instructions
The basic conditions for initializing the power windows are not met. - B610524 Jan 5, 2024 · Service Bulletin/Repair Instructions
The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 âÃÂÓ âÃÂÃÂHU-H: ResetâÃÂàwill be stored in the HU-H3. - B611305 Jan 11, 2024 · Service Bulletin/Repair Instructions
The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle âdisc… - B360121 Jan 8, 2024 · Service Bulletin/Repair Instructions
At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk… - B320223 Jan 4, 2024 · Service Bulletin/Repair Instructions
SITUATION Unusual noises occur only when operating the steering column in the axial direction. 1. A one-time thump sound at the start of movement Shortly after the steering column starts moving, retracting, or extending, a one-time thump noise is heard. … - B160123 Jan 5, 2024 · Service Bulletin/Repair Instructions
A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system(NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air sy… - B160623 Dec 20, 2023 · Service Bulletin/Repair Instructions
Engine will crank but not start. There is no communication with the integrated fuel module (TFE) whendiagnosing with ISTA. The following two fault codes will be stored in the DME: 032B43 - Low fuel pressure system, electric fuel pump: pressure value too l… - B653423 Nov 22, 2023 · Service Bulletin/Repair Instructions
Customers may state that the alarm system (DWA) is not active after locking their unoccupied vehicle. Depending on the vehicleâ™s equipment and settings, no acoustic or optical confirmation (folding the mirrors/blinking confirmation) is noticeable. Additio… - B631323 Nov 9, 2023 · Service Bulletin/Repair Instructions
The carpet welcome light(s) turns on either after a delay, or does not function at all. - B612823 Nov 9, 2023 · Service Bulletin/Repair Instructions
A thumping sound is heard when the window reaches the closing end stop. - B011423 Nov 13, 2023 · Service Bulletin/Repair Instructions
PRESSURE CONTROL VALVE (PCV) EXTENDED LTD WTY 15 YEARS/150,000 MILES - B631123 Sep 5, 2023 · Service Bulletin/Repair Instructions
Moisture is visible in one or both of the Daytime Running Light (DRL) headlights. - B540521 Aug 1, 2023 · Service Bulletin/Repair Instructions
?The sunroof will not operate in either direction. - B520121 Aug 1, 2023 · Service Bulletin/Repair Instructions
?The front seat will not calibrate/initialize, and the stored faults cannot be deleted. - B320223 Aug 1, 2023 · Service Bulletin/Repair Instructions
?Unusual noises occur only when operating the steering column in the axial direction. - B640821 Jun 1, 2023 · Service Bulletin/Repair Instructions
The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings. - B630821 Jun 1, 2023 · Service Bulletin/Repair Instructions
Headlight check control (CC) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A - Left high-beam headlight: Short circuit and/or 8041A5 - light outputs: Number of permitted short circui… - B320420 Jun 1, 2023 · Service Bulletin/Repair Instructions
A groaning type noise is heard during the height adjustment. - B160123 Jun 1, 2023 · Service Bulletin/Repair Instructions
A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system (NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air sys… - B090221 Jun 1, 2023 · Service Bulletin/Repair Instructions
With the introduction of the BMW Remote Software Upgrade, all Service Pack 18 vehicles and partial Service Pack 15 vehicles may receive new functionality or modifications in their features. - B651523 May 1, 2023 · Service Bulletin/Repair Instructions
After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails. - B610123 May 1, 2023 · Service Bulletin/Repair Instructions
Due to a software error, the vehicle sporadically does not achieve sleep mode. As a result, the 12-volt battery becomes discharged and may cause a no-start condition. - B514616 May 1, 2023 · Service Bulletin/Repair Instructions
Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator. - SIB510223 Feb 10, 2023 · Service Bulletin/Repair Instructions
POPPING SOUND AT THE TOP OF THE C-PILLAR - SIB260422 Feb 6, 2023 · Service Bulletin/Repair Instructions
Engine Variants Updated. - SIB660823 Apr 1, 2023 · Service Bulletin/Repair Instructions
Issues with the various functions of the camera-based driver assistance systems (KAFAS system) can possibly lead to following customer complaints: KAFAS camera system deactivates itself, due to system restrictions that are not clear to the customer KAFAS ca… - B841422 Mar 1, 2023 · Service Bulletin/Repair Instructions
Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates). - B840822 Mar 1, 2023 · Service Bulletin/Repair Instructions
The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration i… - B651623 Mar 1, 2023 · Service Bulletin/Repair Instructions
Customer states there is no audio playback (telephony, navigation, radio) and system sounds (PDC, turn indicators, acoustic signals) may also have failed. - B630418 Mar 1, 2023 · Service Bulletin/Repair Instructions
One or more of the LED daytime running lights are dim or discolored. - B610123 Mar 1, 2023 · Service Bulletin/Repair Instructions
Due to a software error, the vehicle sporadically does not achieve sleep mode. As a result, the 12-volt battery becomes discharged and may cause a no-start condition. - B320420 Mar 1, 2023 · Service Bulletin/Repair Instructions
A groaning type noise is heard during the height adjustment. - B260422 Mar 1, 2023 · Service Bulletin/Repair Instructions
There is a howling or whistling noise from under the vehicle at 30 -37 mph (50 -60 km/h) when driving after a cold start, when the outside temperature is 32 F (0 C) or lower. - B260422 Feb 1, 2023 · Service Bulletin/Repair Instructions
There is a howling or whistling noise from under the vehicle at 30 -37 mph (50 -60 km/h) when driving after a cold start, when the outside temperature is 32 F (0 C) or lower. The noise goes away as the vehicle/driveline reaches operating temperature. - B110417 Feb 1, 2023 · Service Bulletin/Repair Instructions
The coolant lines routed to the exhaust turbochargers may develop an external coolant leak. - B841422 Dec 1, 2022 · Service Bulletin/Repair Instructions
Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates). - B613322 Dec 1, 2022 · Service Bulletin/Repair Instructions
Due to a software error, Remote Software Upgrade (RSU) and Remote Support are currently not possible. Additionally, the Integrated Owner's Handbook cannot be displayed. - B612922 Dec 1, 2022 · Service Bulletin/Repair Instructions
The saved steering column positions, vertical and horizontal, are not stored long term. - B260422 Dec 1, 2022 · Service Bulletin/Repair Instructions
There is a howling or whistling noise from under the vehicle at 30 -37 mph (50 -60 km/h) when driving after a cold start, when the outside temperature is 32F (0C) or lower. - B240222 Dec 1, 2022 · Service Bulletin/Repair Instructions
A cracking, metallic noise from under the center of the vehicle. - B170617 Dec 1, 2022 · Service Bulletin/Repair Instructions
Coolant leaking from the engine compartment. Traces of coolant leaking from the expansion tank of the low temperature cooling system. - B122519 Dec 1, 2022 · Service Bulletin/Repair Instructions
After an automatic engine start (MSA start), the transmission intermittently goes into the Park "P" or Neutral "N" position without any customer influence. - B540521 Nov 1, 2022 · Service Bulletin/Repair Instructions
The sunroof will not operate in either direction. There are NO faults stored related to the sunroof. If the vehicle has any faults stored related to the sunroof, this bulletin does not apply. - B651922 Oct 1, 2022 · Service Bulletin/Repair Instructions
The customer complains that the radio stations change by themselves. - B650414 Oct 1, 2022 · Service Bulletin/Repair Instructions
According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not curr… - B620322 Oct 1, 2022 · Service Bulletin/Repair Instructions
After programming, the customer may complain that the Sport Mode display is not fully displayed in the instrument cluster. Instead of a red background in sport mode, the background is displayed in blue (like ECO PRO mode). - B611222 Oct 1, 2022 · Service Bulletin/Repair Instructions
After opening the vehicle with the radio remote control and changing the profile, the exterior mirror settings are lost. - B662419 Sep 1, 2022 · Service Bulletin/Repair Instructions
Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column. - SIB650922 Aug 1, 2022 · Service Bulletin/Repair Instructions
The sound output intermittently drops out entirely. This can be reproduced with all audio sources as well as telephone and voice output. - SIB090121 May 1, 2022 · Service Bulletin/Repair Instructions
BMW offers a new special ISTA Installation made available for Roadside Assistance / Mobile Service technicians. The new ISTA Version is also able to be used in case of a Remote Software Upgrade (RSU) programming failure to get the customer car reprogrammed … - SIB010522 May 1, 2022 · Service Bulletin/Repair Instructions
Component specific limited warranty extension. This component-specific limited warranty extension applies to defects in materials or workmanship. This coverage is subject to the same vehicle eligibility requirements, limitations and exclusions that apply to…
Source: NHTSA manufacturer communications files.